Rynna-line is a non-insulated, gutter lining solution for old or failing gutters in need of refurbishment. Rynna-line is fully weathered by a textured PVC membrane which is factory laminated to 0.6mm thick galvanised steel, compliant to: BS EN 10346 Grade DX51D. Standard lengths are manufactured in 3 metres. With a CLASS A 1.2mm membrane thickness.